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Sapphirine In Biotite

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CYF624610

Sapphirine In Biotite

Description Tabs

Description
Locality: 
Vestfold Hills, Ingrid Christensen Coast, Princess Elizabeth Land, Eastern Antarctica, Antarctica
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
10 × 7.5 × 4 cm
Description

This is a  rare mineral from a very rare locality!

High grade metamorphic sapphirine in a biotite schist.

This specimen was acquired prior to the mineral resource treaty

Mineral Data
What's on the rock

Sapphirine

Formula: 
(Mg,Fe)4-xAl4+x[Al4+xSi2-xO18]O2
Strunz: 
9.DH.45
Hardness: 
7.5
Type Locality: 
Fiskenæsset old harbour, Fiskenæsset (Fiskenaesset; Qeqertarsuatsiaat), Nuuk (Godthåb), Sermersooq, Greenland

Biotite

Group Parent: 
Mica Group